High Strength Forged Shaft for Wind Turbine Main Drive Shaft Assembly Components

The High Strength Forged Shaft for Wind Turbine Main Drive Shaft Assembly Components is designed to endure the extreme loads and demanding operational conditions of modern wind turbines. Manufactured from premium alloy steels and forged using precision open-die or closed-die processes, this shaft offers superior torsional strength, fatigue resistance, and impact toughness. Advanced heat treatment and careful machining ensure dimensional accuracy, smooth rotation, and long-term reliability, supporting efficient energy transmission from rotor to gearbox.

Product Features

• Exceptional Strength and Toughness: Optimized forging and heat treatment provide high torsional capacity and excellent resistance to fatigue and impact.

• Precision Machining: CNC-machined to strict tolerances for accurate fit in main drive shaft assemblies, ensuring stable and smooth operation.

• Durable Alloy Material: Carefully selected steel grades provide long service life under high rotational speeds and cyclic loading.

• Customizable Dimensions: Shaft diameter, length, and keyway profiles can be tailored to meet specific wind turbine designs and gearbox interfaces.

• Reliable Performance: Designed to maintain operational stability in extreme environmental conditions, including temperature variations and wind load fluctuations.

Applications

• Wind Turbine Main Drive Shaft Assemblies for onshore and offshore turbines

• Industrial Gearboxes within renewable energy systems

• High-Torque Transmission Systems in heavy-duty wind energy applications

• Rotating Machinery requiring high fatigue resistance and precise alignment

Steel Forgings Production Flow

Incoming material inspection → systematic unloading and secure storage → preliminary quality evaluation → controlled preheating to forging temperature → precision shaping through open-die or closed-die forging → heat treatment (quenching and tempering) to optimize mechanical performance → intermediate inspection to verify internal integrity → rough machining to approximate final geometry → detailed non-destructive testing (NDT) to detect internal and surface defects → final dimensional and quality verification → protective packaging → delivery to customer.

Frequently Asked Questions (FAQs)

Q1: What are the typical size and weight ranges for your forged components?
We manufacture forged parts from approximately 100 kg up to 7,000 kg, catering to both medium-scale machinery and large industrial equipment that require precise dimensions and robust structural performance.

Q2: Do you handle heat treatment and machining in-house?
Yes. All heat treatment processes, including quenching and tempering, are conducted internally. Components can be supplied as rough-machined blanks or fully finished parts, with advanced CNC machining ensuring exact compliance with customer specifications.

Q3: Which industries commonly utilize your forgings?
Our forgings are widely used in wind power, overhead and gantry cranes, material handling systems, heavy construction and mining equipment, and high-performance industrial power transmission assemblies.

Q4: What are the typical production lead times?

• Standard or stock items: approximately 30 days

• Custom or non-standard forgings: generally 40–45 days, depending on material, dimensions, and processing complexity

Q5: Where is your production facility located?
Our factory is situated in Changzhou, Jiangsu Province, China, near Shanghai. This strategic location enables efficient logistics and reliable export via Shanghai Port to customers around the globe.

About CHANGZHOU TIANGONG 

We are a Chinese company with over 30 years of forging experience. Our focus lies in the production of machine free forged products. We take pride in our independent quality assurance laboratory, which ensures that all our products meet our customers’ requirements. 

Our customers and partner value our products and services for 2 reasons: excellence and reliability.

Key figures 

A. Over 30 years professional free forging manufacturing experience

B. The company covers an area of 71,000 square meters

C. The construction area of the production workshop is 12,000 square meters

D. Total number of employees of 158

E. 28 engineering and technical personnel 

F. 59 skilled workers 

G. Annual production capacity is 38,000 tons

H. Steel throughput can reach 56,000 tons

Efficient and reliable solutions for customers

Industrial sector application

We design and manufacture forged parts for all industrial areas applying our experience and unique professionalism and taking the specific requirements of the markets into account. This has led us to become a forging industry leader in all industrial segments and collaborating with leading companies.

A. Wind power generation

B. Port Heavy Machinery

C. Mining

D. Ship Building

E. Chemical industrial

F. Oil industrial

G. Metallurgical industry 

H. Hydraulic industry 

I. Other high-end industrial equipment, gearbox body, parts and etc.

Customized solutions 

Modular processes allow us to engineer a solution for almost every industrial application requiring free forged parts. Our modularity means flexibility, a wide range of options, faster delivery, and most important of all, competitiveness.

All our products and production process have been designed to assure excellent, reliable and long lasting unique mechanical performances, resulting in reduced operating costs and long life.

With a wide range of products and a significant experience gained in most industrial applications, we can also provide complete engineering recommendation for customers.